# File lib/hiera/backend/eyaml/options.rb, line 23
        def self.trace
          Utils::trace "Dump of eyaml tool options dict:"
          Utils::trace "--------------------------------"
          @@options.each do |k, v|
            begin
              Utils::trace sprintf "%18s %-18s = %18s %-18s", "(#{k.class.name})", k.to_s, "(#{v.class.name})", v.to_s
            rescue
              Utils::trace sprintf "%18s %-18s = %18s %-18s", "(#{k.class.name})", k.to_s, "(#{v.class.name})", "<unprintable>" # case where v is binary
            end
          end
          Utils::trace "--------------------------------"
        end